# a = 4
# b = 9
# print(a == a)
# print(a is a)


# print("{0}是{1:.2f},是一个{2}".format('pi',3.14159,'无理数'))
# print("{0:.2f}".format(123455.564))
# print("{0:<}".format(123455.564))
# print("{0:>}".format(123455.564))
# print("{0:*^}".format(123455.564))
# print("{0:b}".format(123455))
# print("{0:c}".format(1234))


a = 123123
b = '356'
print(type(str(a)))
print(type(b))



